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Finding the Fourth Proportional to 84,688.01, 116,836.11 and 48,871.10

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Solution

The fourth proportional to 84,688.01, 116,836.11 and 48,871.10 is: 67,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,688.01 : 116,836.11 = 48,871.10 : x
  2. Step 2: Convert to fraction form
    84,688.01/116,836.11 = 48,871.10/x
  3. Step 3: Cross multiply
    84,688.01x = 116,836.11 × 48,871.10
  4. Step 4: Simplify right side
    84,688.01x = 5,709,908,631.24
  5. Step 5: Solve for x
    x = 5,709,908,631.24/84,688.01
  6. Step 6: Final answer
    x = 67,422.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.